Example newsyslog configuration for rotating Rails log files on Mac OS X.

newsyslog-for-your-project.conf

# logfilename                                               [owner:group]       mode count size when  flags [/pid_file] [sig_num]
/Users/your-username/path-your-rails-project/log/*.log      your-username:staff 644  4     *    $D0   GJ

# NOTES
#
#   Place file in /etc/newsyslog.d
#   '$D0' under 'when' tells newsyslog to rotate logs daily at midnight.
#   Alternatively you could use '24' for 'when', which would specify "every 24 hours"
#   '*' under 'size' specifies that logs should be rotated regardless of their size.
#   'G' under 'flags' tells newsyslog that the 'logfilename' is a pattern and it should rotate all log files matching the pattern.
#   'J' under 'flags' specifies that rotated logs should be compressed using bzip2.

Awesome, thanks!
I guess you use this in development environment?

Have you ever noticed your rails starts failing to write to logs after they are rotated? Wondering if this has to do with the pid_file option being left out.

Hello, does anyone know how to let Rails point to newly rotated logfile? Rails still logs to old log file after rotation.